Answer:
Step-by-step explanation:
C11 = (1×1) + (-1×3) = 1-3 = -2
C12 = (1×2) + (-1×4) = 2-4 = -2
C21 = (2×1) + (1×3) = 2+3 = 5
C22 = (2×2) + (1×4) = 4+4 = 8
The area of a sector of a circles is calculated by the equation A = πr^2 (theta/360). From the data of the sector, we determine the radius of the circle. THen, we can calculate for the area of the circle.
16.4π = πr^2 (72/360)
r = 9.06
Area of circle = πr^2
Area of circle = π(9.06)^2
Area of circle = 82π
Answer & Step-by-step explanation:
In order to calculate the area of a triangle, you must multiply the base by the height and divide it by 2. If you know how to work out the area of a rectangle, you should be able to easily work out the area of a triangle because a triangle is basically half of a rectangle or square. Therefore, you should use the same method of finding the area of a rectangle and then dividing it by 2 as it's half of a rectangle. I hope that makes sense!
Answer:
<h2>(f•g)(4) = 7</h2>
Step-by-step explanation:
It is given that and
(f•g)(x) = f(g(x)) = =
Putting x = 4 in the above equation, we get (f•g)(4) = = 1 +9 - 3 = 7